A. 用于比较的词语 similarly, likewise, correspondingly, in the same way, to resemble, to equal, both … and …, either … or…, neither …nor…, not only… but also …, like, identical, equally, similar to, equal to, a similarity B. 用于对照的词语 to differ from … (in), to contrast with, to distinguish between, in contrast, on the other hand, not as … as, unlike, while, whereas, although, differently, even if, in contrast to, as opposed to, distinct from, different from, however, but, more (less) … than, a contrast, a dissimilarity, a difference
一、段落（Paragraph） 每篇文章一般都是由数个段落构成，写好段落是写 好一篇文章很关键的一步。 1. 构成（composition） 段落有短有长，短的可能只有一个句子，长的可能 有十多个，以至几十个句子。但不论长短，其中心意思 必须表达清楚。 就一般情况来说，每个段落都应由以下三个主要部 分组成。 （1）主题句（topic sentence） 阐述段落的中心思想。在一般情况下，主题句处于 段落的第一句；有时也可在段落的末尾或其它地方，甚 至可以用含蓄的方式来表示。
B. 表示增补意义（addition） in addition, furthermore, moreover, and, also, or, too, besides, again, what’s more, likewise C. 表示强调（emphasis） in fact, as a matter of fact, in other words, of course, certainly, above all, indeed, clearly, surely, in particular, obviously, naturally, anyway, in this case D. 表示对照（contrast） while, whereas, in contrast, on the other hand, instead, on the contrary, in spite of, despite, but, however, although, still, yet, nevertheless, conversely, otherwise
